Improved oil-cup



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OIL 0UP.

N5. 102,973. Patented May 10, 1870.

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Letters Patent No. 102,973, dated May 10, 1870.,

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To all whom it may concern:

Be it known that I, JsMEsjRoss, of North Ualnbridge, in the county ofMiddlesex and State of Massachnsetts, have invented a new and usefulImprovement 1n O1l-Oups; and I do hereby declare the following to be afull, clear, and exact description of the same,

reference being bad to the accompanying drawing, and in which- Figure 1represents a vertical section of an oil-cup, constructed inaceordancewith my improvement, and Figure 2 is a partly sectional plan of thesame, corresponding to fig. -1.

Similar letters of reference indicate corresponding part-s in-botbfigures. v

This invention relates more especially to oil-cups that are-used onsteam-engines, where -steam can be admit-tedinto the cups, as forsteam-cylinders, 8m. The object of my improvement is to obtain a steadyand easily graduated feed of the lubricating material,

.eitherby means of condensation of steam admittedinto the cup, or bygravitation; and to this end It consists in the provision andarrangement of a double valve, with its accompanying seats and passages,\vithin and in the bottom of anoil-cup, whereby the above object isobtained.

It further consists in a novel construction of the cover, whereby thelubricating material in a solid form, as tallow or suet, can beintroduced into the cup and the latter be tightly closed.

To enable others to construct oil-cups in accordance with my invention,I will proceed to describe the same with reference to the drawing. f

A is an oil-cup, at the bot-tom of which a horizoutal cylindricalcompartment, 13, is formed.

This compartmentcommunicates with the inside of the cup by means of atube, 0, which passes upward from its top, in the middle of said cup,above its contents. 1 One end of this compartment has an outlet, 0',while the other end, which is open to the outside of the cup, isprovided with a stufiing box, I), through which a piston-valve, D, isoperated.

This valve is 'madeto work against the seats 0 (I, being at both. endsformed to fit those seats, and having its stem e' provided with a malescrew-thread, to 1tlurnbiu a female screw-thread formed in the stuiiing-E is a knob, formed on-the outer end of the.valvestem e, by means ofwhich the valve D can be easily worked- F is a. passage, which is formedin the shank of the oil-cup, and which allows the lubricating materialpassing through, the compartment B and outlet rt to flow to the place tobe lubricated.

G is the top valve or cover of the oil-cup, which is The Schedulereferred tojnthele Letters intent and making part of the same providedwith a white-metal seat, j; and on its top, in the center, with 'the lugg.

H is a spanner or lever, hingedto ,the top of the oilcnp at h, whichpasses centrally across the valve G, allowing the lug g of the latter tofit loosely into a recess, 1', formed in the under side of the spanner,

where it is held by a pin passing horizontally through the sides of thespanner and the log y.

The end of the spanner H opposite the hinge h is recessed on one side,so that a screw-rod, k, which is pivoted at l to the side of theoil-cup, may be swung up into said recess for the purpose of holding the.valve G to its seat by means of the screw-nut an operating on therecessed end of the spanner H.

N ow, when the feed is to be obtained by means of gravitation from thebottom of the oil-cup, the valve D is turned so as to be off both theseats 0 and d, as shown in fig. 1, whereby steam is admitted into thetop of the oil-cup through the passage F, outlet a, and tube 0, allowingthe lubricating material to pass through the openings a ainto thecompartment b, and from thence through the outlet a, along the pas sag eI to the place to be lubricated. The discharge can be graduated bygiving more or less opening between the-valve D and its seat (I.

When the feed is to beobtained by means of condensation, the valve D isturned to be closed against the seat (I, keeping open a free passage tothe steam, which is condensed in the top of the oil-cup, whereby thelubricatingmaterial is drawn up to pass through the tube 0 until it isall emptied, when the waterof condensation is passed off through theopenings 41 a by placing the valve D again in position, as shown in thedrawing. The amount of feed can be easily graduated by different lengthsof the tube 0. The shorter the tube the more condenshig-surfirce will beafi'orded in the top of the oil-cup, which will increase the amount offeed.

The double valve D is preferably made of steel and self-acting, whilethe topvaljve G is provided with a whiteqnetal seat, so that an oil-cupconstructed as herein described needs no pet-cocks and its valves nogrinding, making it a simple and efficient steam-lubricator. \Vhat ishere claimed, and desii Letters Patent isj 1. The combination of thedouble valve D, seats 0 d, passages a a a, tube G, and passage 1*,substantially as and for the purpose herein described.

2. The cover or top valve G, hinged spanner H, pivoted screw-rod k,- andnut in, substantially as and for the purpose herein set forth.

Witnesses: JAMES ROSS.

'Cass. S. Knownss,

E. J. Lormzor.

'ed to be secured by

